Help no heat or thermostat well not open after prl rbc kit install

red13devil

red13devil

Well-Known Member
106
16
Oklahoma
Vehicle Model
Civic si
Body Style
Sedan
Ok my car is 2013 civic si after install the prl rbc kit and fill coolant full start up and leave coolant cap off keep topping off coolant trying to blurb the air out and had laptop logging I see my coolant temp keep going up and my fan still not kicking in? Temp reach up to 210 so I turn off car my lower hose is cold and upper is hot seems like thermostat is not opening so I can really bleed the air out, any ideas what could it be all connection are recheck it plug in as it is,
 
I have not done anything to "burp" the coolant system either time...I tore it all apart to put the P2R thermal gasket on yesterday. All I did was fill the radiator itself and the reservoir. No temp problems.

Did you buy premixed coolant or make sure you mixed it properly?

Did you remember to hook up the clip that is under the RBC near the radiator? It is connected to the same bundle as the MAP sensor.
 
I would say check all of your sensors connections and make sure everything is plugged in right.
I did the same thing as you, started the car and let it idle for 15 minutes while adding coolant as needed until it was completely topped off.
 
There is an additional wire that comes off of the bundle with the MAP sensor that looks like it could be routed to the radiator fans. I would double-check that connection.

2013-09-29 18.53.57.jpg
 
Thanks for all the reply but I did what all u guys have say to do check all connector and sensor all are connect like it should, And I got is 50/50 coolant no need to add water
 

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K now I have heat but the fan still not working and the lower coolant hose that hook up to the radiator is not hot it warm only but the upper coolant hose is hot hot? Help help here my fuse box no fuse where blown. This is the fan fuse rite or wrong this is what I though it was but not sure ?
 

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Here are the 2012 fuse panels. One is in the engine bay, and the other is below the steering wheel in the interior of the car
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engine.png interior.png
 
When you had the radiator cap off was the coolant inside moving around?. Its odd that only one hose is getting hot , maybe thermostat is stuck closed?. They are usually fail safe and get stuck open , but you never know.
 
njhustler said:
When you had the radiator cap off was the coolant inside moving around?. Its odd that only one hose is getting hot , maybe thermostat is stuck closed?. They are usually fail safe and get stuck open , but you never know.
Click to expand...


No, yes I think it might of stuck close so I'm had to look at it this weekend :( I drive it to work today and the lower hose still cold only the top hose is hot
 
Yes I had to buy new one to fix the problem, thanks for all that trying to help me out
 
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